Medically the review by Cynthia Cobb, DNP, APRN, WHNP-BC, FAANP — written by Kathryn Watson ~ above October 22, 2019

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Permanent hair straightening treatments are a form of chemical handling for your hair. Depending upon what method of processing you use, hair that’s naturally curly or textured can be altered to place flat and also lose that is curl.

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These treatments work for number of months or more, normally lasting until brand-new hair grow in to change the hair that was treated. For this reason, these procedures are called permanent hair straightening.

The “permanent hair straightening” label have the right to be used to describe keratin treatments, heat straightening, and also “perm” straightening processes. If you find your wavy or curly hair hard to style or just want a readjust in her look, these processes deserve to be appealing.

Self at-home treatments and also salon treatments are both famous options. This article will help you be informed around the pros and also cons of this kind of hair treatment.


Types of therapies

There space several varieties of therapies that insurance claim to make her hair straighter. Each depends on a various chemical formula and processing method. Several of these treatments are marketed in kits that you can do yourself at home, when others require salon-grade tools to be excellent effectively.

Professional long-term straightening

A perm describes a chemical process that permanently transforms the hair follicle. Perms are sometimes linked with creating curls in hair that doesn’t naturally have it, but they have the right to be supplied to do hair straight, too.

Perms are usually done in one appointment the takes a few hours. The expense of a perm have the right to vary follow to your salon and also how lengthy your hair is. Typically, price start roughly $50.

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At-home perms

Chemical relaxant kits can be purchased at pharmacies and beauty it is provided stores. These treatments case to sell the same results as a perm native a salon. Unless you have formal cosmetology training, it will certainly be tricky to usage these kit effectively. At-home perm options tend come start roughly $15.

Semi-permanent hair straightening

Keratin hair treatments, Brazilian blowouts, and semi-permanent hair straightening all refer to a technique of dealing with your hair for a right texture the lasts 3 to 5 months. This method can take it multiple salon appointments to finish application, and also typically costs over $150.

Thermal straightening

Japanese thermal hair straightening, additionally called an mountain perm, is more similar to a timeless “straight” perm 보다 it is come a keratin treatment.

This process might involve the longest time invested in a shop chair (5 come 6 hours), yet it likewise claims to critical the longest (up to 6 months). It likewise costs the most, varying from $200 to $800.


How the works

All permanent hair straightening techniques use the exact same strategy.

A chemical solution is used to your hair. This chemicals adjust the means that the protein in her hair are configured.

With perms and also thermal straightening procedures, a neutralizer is then used to her hair. This neutralizer causes your hair to lock into its new shape, with brand-new bonds forming in between the protein molecule of your hair.

It have the right to take several hrs to med the hair v the chemistry solution, apply the neutralizer, and style her hair. This chemical solutions regularly carry solid scents, and in many instances you’re cautioned against getting her hair wet or also sweating too much in the days complying with the treatment.

This way that you’re walking about inhaling the chemicals provided to treat your hair, and exposing everyone near you come them.


Hair breakage ~ a permanent hair straightening therapy is rather common. The chemical systems works by, in essence, damaging your hair so the lies level or publication its herbal curl.

This method that her hair might be harder come style and take much longer to dry until it grow out and new, untreated hair take away its place.

There’s additionally a concern around the chemicals supplied for this straightening processes.

Formaldehyde, i m sorry is in nearly all straightening solutions, is a recognized carcinogen. Using it to your hair and also inhaling fumes reasons exposure strong enough to reason side effects. This may encompass respiratory difficulties, wake up to her nose and also eyes, and also skin redness and also irritation.

What around natural products?

Even “all-natural” or “formaldehyde-free” recipe of hair straighteners are often full of duplicate chemistry that become formaldehyde when they’re heated.

A 2014 research on Brazilian keratin hair straightening treatments found formaldehyde levels the were understood high sufficient to attitude a health hazard for consumers.

Of course, it’s better for your health and wellness to look because that low-exposure options, however this is a situation where reading the labels and asking questions won’t necessarily yield the truth around the product you’re using.

According to the environmental Working Group, chemical straighteners that space lye-free or alkaline sulfite-based are safer than part alternatives. That course, the safest alternative of every is to protect against exposure to harmful chemistry that deserve to absorb through your scalp and also your sleep passages.

You shouldn’t get any kind of of these permanent straightening therapies if she pregnant or make the efforts to become pregnant.